Optical information recording medium, and substrate and...

Details Optical information recording medium, and substrate and... Optical information recording medium, and substrate and...

2008-06-23

2010-02-02

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275300, C369S288000

Reexamination Certificate

active

07656782

ABSTRACT:
In an optical disk including at least a rewritable phase change material and comprising a recording layer having a reflectivity of more than 15%, an address output value as an address pit signal component occupying in a reproduced signal in a non recording state is prescribed to be 0.18 though 0.27 or a numerical aperture of an address pit signal occupying in a reproduced signal in a non recording state is prescribed to be more than 0.3.

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